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Online Computer Terms Dictionary - C

Church-Rosser Theorem

<theory> A property of a reduction system that states that if an expression can be reduced by zero or more reduction steps to either expression M or expression N then there exists some other expression to which both M and N can be reduced. This implies that there is a unique normal form for any expression since M and N cannot be different normal forms because the theorem says they can be reduced to some other expression and normal forms are irreducible by definition. It does not imply that a normal form is reachable, only that if reduction terminates it will reach a unique normal form.

(1995-01-25)

 


Nearby terms: Church, Alonzo Church integer Church of the SubGenius Church-Rosser Theorem ci CI$ CICERO
 

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